The aim of this essay is to critically consider Arundhati Roy’s novel The God of Small Things from a postcolonial feminist perspective, with a special focus on how she models different representations of women, taking as a background the discussions within postcolonial feminism about subalternity and the representations of women from the so-called Third World in theory and literature, as well as the concept of agency from Cultural Studies. This purpose is reached by studying and comparing three main female characters in the novel: Mammachi, Baby Kochamma and Ammu, centering on their different ways of relating to the male hero of the novel, Velutha, an Untouchable in the lingering caste system of India. The essay argues that Roy has contributed with diverse representations of subaltern women in the ‘Third World’ who—despite their oppressed and marginalized status—display agency and are portrayed as responsible for their own actions.